X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fground%2Frelocation%2Frtmap_isid.ma;h=f52700b3e86fb09d65ff27c073a04731785c899d;hp=e43b0bc086a97104f04a2a7c81b353b85b987055;hb=8fdf1af656038d0245eba64ff2531bbe94ce0e9e;hpb=77c9255de3c5f7780aeacd745703a1cc76328a68

diff --git a/matita/matita/contribs/lambdadelta/ground/relocation/rtmap_isid.ma b/matita/matita/contribs/lambdadelta/ground/relocation/rtmap_isid.ma
index e43b0bc08..f52700b3e 100644
--- a/matita/matita/contribs/lambdadelta/ground/relocation/rtmap_isid.ma
+++ b/matita/matita/contribs/lambdadelta/ground/relocation/rtmap_isid.ma
@@ -78,13 +78,13 @@ qed-.
 (* Properties with iterated push ********************************************)
 
 lemma isid_pushs: ∀n,f. 𝐈❪f❫ → 𝐈❪⫯*[n]f❫.
-#n elim n -n /3 width=3 by isid_push/
+#n @(nat_ind_succ … n) -n /3 width=3 by isid_push/
 qed.
 
 (* Inversion lemmas with iterated push **************************************)
 
 lemma isid_inv_pushs: ∀n,g. 𝐈❪⫯*[n]g❫ → 𝐈❪g❫.
-#n elim n -n /3 width=3 by isid_inv_push/
+#n @(nat_ind_succ … n) -n /3 width=3 by isid_inv_push/
 qed.
 
 (* Properties with tail *****************************************************)
@@ -99,5 +99,5 @@ qed.
 (* Properties with iterated tail ********************************************)
 
 lemma isid_tls: ∀n,g. 𝐈❪g❫ → 𝐈❪⫱*[n]g❫.
-#n elim n -n /3 width=1 by isid_tl/
+#n @(nat_ind_succ … n) -n /3 width=1 by isid_tl/
 qed.